Truck for cylindrical containers



Jan. 20, 1970 o. KUNG 3,490,784

TRUCK FOR GYLINDRICAL CONTAINERS Filed Dec. 13, 1967 2 Sheets-Sheet 1 Fig.1

Jan. 20, 1970 I o. KONG TRUCK FOR CYLINDRICAL CONTAINERS 2 Sheets-Sheet 2 Filed Dec. 13, 1967 United States Patent O US. Cl. 28033.99 Claims ABSTRACT OF THE DISCLOSURE The truck in plan view has a wheeled equilateral triangular frame mounting three sliver can supports, the centers of which lie on the bisectors of the respective frame corners and which define an equilateral triangle. The base socket of the can, when the latter tips, engages the socket support to prevent the can from tipping over.

BACKGROUND OF THE INVENTION The invention relates to a truck or dolly for cylindrical containers. Trucks of this kind are employed, for example, in spinning mills to transport sliver cans from one draw frame, where the cans are filled, to another draw frame, or to a finishing machine, a fiyer, or to a spinning frame, where the cans, left on the truck, are emptied. With the usual draw frames, it is necessary only when loading to remove the empty cans from the truck and to replace them with filled cans.

The conventional trucks are rectangular in plan view, and incorporate a railing and a platform. These trucks occupy a considerable space, and do not always ensure that an adequate number of sliver cans can be located sufficiently close to the processing machinery. In addition, these trucks are quite clumsy to handle and are expensive.

SUMMARY OF THE INVENTION The truck of the invention avoids these disadvantages of conventional sliver-can trucks, but it is not limited in its application solely to this field, but can be advantageously employed for cylindrical containers wherever the. features of lightness, easy handling, relatively small size, secure mounting of the container, and easy storage are desirable.

BRIEF DESCRIPTION OF THE DRAWING The invention will be described with reference to the figures of the accompanying drawing, wherein:

FIG. 1 is a view in cross section taken along line II of FIG. 2 of the truck, one cylindrical container being shown;

FIG. 2 is a top view of the truck without any container; and

FIG. 3 shows four ways in which the trucks can be grouped.

DESCRIPTION OF THE PREFERRED EMBODIMENT With reference to FIGS. 1 and 2, the truck incorporates a horizontal frame 1 composd of iron T-bars forming an equilateral triangle. The truck is movable on three wheels or casters 2, which can take the form of swiveled spheres, as illustrated, of known construction, mounted in respective corners of the frame. Three identical can support bases 3, having each a circular periphery, are so arranged on the upper side of the frame that the center M of each base lies on the line W bisecting the angle defined by the respective frame corner. Each base projects beyond its respective corner and very nearly extends to the bisectors W of the other two corners. The centers M, of course, define an equilateral triangle.

Each base is composed of a lower and an upper iron ring, 5 and 7 respectively, made as an integral unit and coaxial with one another.

The lower ring 5, which has the smaller diameter, is welded to the frame 1, and incorporates an inwardly extending lip 6. The upper ring 7 of the unit, which has the larger diameter, also incorporates an inwardly extending lip 8, which serves to support the bottom 9 of a sliver can 10. The latter is provided with the customary base ring 12, which projects below the can bottom 9 as an extension of the cans surface 11. The height of the ring 7 is so tailored with respect to the base ring 12 that, should the can 10 tip, in the direction of the arrow 13, for example, the base ring 12 tends to catch at 14 with the ring 7, thereby virtually precluding accidental tipping over of the can. The arrangement, however, does not interfere with the intentional removal of the cans from the truck. The largest diameter of a support base 3 is slightly smaller than the diameter of the can, which customarily lies between approximately 350 and 600 mm.

The truck of the invention has the advantage, as against conventional trucks which are rectangular in plan view, that the cans on the trucks can be positioned in a very compact and space-saving arrangement next to the drawing frames, finishing machines, flyers, spinning frames, and similar machines, as is apparent from the schematic diagrams b and d of FIG. 3. Depending on the available space and the requirements of the machine fed, the trucks can also be arranged as shown in diagrams a and c of FIG. 3.

In comparison to conventional trucks, the truck of the invention has the further advantage that it has no platform or railing, which construction results in a truck very much lighter in weight and free of any attendant disadvantages, since the design of the can support bases prevents the cans from tipping over. A large number of trucks of the invention, loaded with sliver cans, are easily pushed together to form a compact group. When not in use the trucks take up very little space; the unloaded trucks can be stacked up, one on the other, by angularly staggering successive trucks 60, whereby the frame 1 of a truck rests on the lip 8 of the truck below, and its wheels 2 project downward and outside of the frame of the lower truck.

As pointed out above, the trucks of the invention are not limited to the transport of sliver cans.

What is claimed is:

1. A truck for transporting vertical cylindrical containers, particularly suitable for sliver cans, comprising a horizontal equilaterally triangular frame free of railings; wheels respectively mounted on said frame at the corners thereof for enabling rolling movement thereof over a surface; three support bases for respective cylindrical containers secured to said frame, part of each said base projecting beyond said frame, each base having a center and said centers together defining an equilateral triangle; each of said centers lying on the bisector of the angle defined by a respective corner of said frame and each of said bases being associated with a respective frame corner and projecting therebeyond while extending nearly to the bisectors of the other two frame corners, each of said base comprising a unitary lower ring and upper ring, said lower ring having a smaller diameter than said upper ring and being fixed to said frame, and said upper ring supporting the bottom of the cylindrical container.

2. The truck as defined in claim 1, wherein said upper ring incorporates an inwardly projecting lip that serves to support the container bottom.

3. The truck as defined in claim 2, wherein the cylindrical container incorporates a base ring, and whereby the base ring and said upper ring of a support base tend to catch when the container is tipped, thereby preventing the container from tipping over.

4. The truck as defined in claim 1, wherein a plurality of the trucks can be stacked up, one on the other, by angularly staggering successive trucks 60, whereby the support bases of the lower truck support the frame of the next higher truck, the wheels of which project downwards and outside of the frame of the lower truck.

5. A truck for transporting vertical cylindrical containers such as sliver cans, comprising:

a horizontal frame having the configuration of an equilateral triangle;

respective rolling means alfixed to said frame at the vertices thereof for supporting said frame;

a respective support base overlying each of said vertices and secured to said frame and adapted to support a respective one of said containers, said support bases each being constituted as a stepped ring having a small-diameter annular-member fixed to said frame and, integral and coaxial therewith a large-diameter annular member above the smaller-diameter member and overhanging said frame while carrying the respective container.

References Cited UNITED STATES PATENTS 15 LEO FRIAGLIA, Primary Examiner MILTON L. SMITH, Assistant Examiner U.S. Cl. X.R. 

